111200101021021 has 8 divisors (see below), whose sum is σ = 111517798619520. Its totient is φ = 110882856307872.

The previous prime is 111200101021003. The next prime is 111200101021027. The reversal of 111200101021021 is 120120101002111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111200101021021 - 2¹⁵ = 111200100988253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111200101020992 and 111200101021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200101021027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112729560 + ... + 113711713.

It is an arithmetic number, because the mean of its divisors is an integer number (13939724827440).

Almost surely, 2^{111200101021021} is an apocalyptic number.

It is an amenable number.

111200101021021 is a deficient number, since it is larger than the sum of its proper divisors (317697598499).

111200101021021 is an equidigital number, since it uses as much as digits as its factorization.

111200101021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226442675.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111200101021021 its reverse (120120101002111), we get a palindrome (231320202023132).

The spelling of 111200101021021 in words is "one hundred eleven trillion, two hundred billion, one hundred one million, twenty-one thousand, twenty-one".